STEELexpress: steel calculation

STEELexpress: Design of Stuctural Steelwork Elements according to Eurocode 3 EN 1993:2005

With STEELexpress you can easily design structural elements of structural steel.

Lifetime license and free updates!

 stabilità elementi acciaio in copressionePlinto per pilastro in acciaio connessione fix

  • Classification of cross-sections
  • Resistance of cross-sections in single and combined actions
  • Flexural and lateral buckling resistance of members.
  • Design of connections.
  • Design of beams, columns, roof and floor structures. 
  • Design one floor framesand two floor frames. 
  • Design of purlins and bracing systems.
  • Design of footings of steel structures.
  • Parameters according to National Annex of Eurocode.
  • Detailed reports with references to Eurocode paragraphs and necessary drawings.
  • Tables with all international steel profiles with dimensions, resistance and buckling resistance values.
  • User defined steel section properties.
  • Welded steel sections formed by the user.

A combined detailed report  is produced for the designed steel components. Assumptions and references to design codes are shown in the report. The user can select the applicable National Annex. The design code parameters, as well as default values, can be adjusted by the user. Design Charts and Tables for use and understanding of Eurocode 3 are included in the program. For frame structures the program's CAD modulus automatic generates detailed drawings of the structure and the joints.

Design of steel frames

Progetto portali in acciaio

Single bay portal frames under vertical and horizontal loadings, also with concentrated loads on the columns

Single bay portal frames under snow, wind and seismic loading.

Two floor frames under vertical and horizontal loadings

Design of Steel Beams

Progetto travi d’acciaio

Single beams (simply supported, fixed in one end or fixed in both ends). Combination of uniform, triangular or concentrated loads. Various lateral length supports.
Floor beams of one or two spans or one span and cantilever. Laterally unrestrained, restrained at one or two intermediate points, or totally restrained.
Roof beams of one or two spans. Snow, wind pressure and under pressure, imposed load.
Purlin design. Simply supported or continuous. Laterally restrained or unrestrained.

Design of Steel columns

Progetto di pilastri d’acciaio

Single members in compression (various end conditions  and buckling lengths).

Columns under axial load, or axial load and single or double  bending.

Columns in simple constructions (simple columns, columns in braced or unbraced frames)

Design of bolted connections

Progetto di connessioni bullonate 1

Design of various connections according to Eurocode 3-1-8

Connections are design for specific actions, and the program selects the optimum connection geometry and bolt number and arragenment .

You may also specify the bolt number and configuration and the program computes the connection capacity

Progetto di connessioni acciaio

Tension connections

Shear joint

Short continuity of I section

Double shear joint

Splice joint

Connessioni trave-trave

Beam to beam connections

Beam-continuation connection

Gerber-beam connection

Beam-on-beam connection with web cleats

Connessioni trave-pilastro

Beam to column connections

Beam on column connection with web cleats

Beam on column connection with end plates

Beam to column connections

Connections of portal frames

Bolted connections with end or base plate. 

Apex connection

Eve connection with Haunch

Eve connection without haunch

Simple column base connection 

Fixed column base connection

Connessioni dei telai a portale

Connections made with pins

Pin ended member

Gerber-beam connection

Connessioni con perni

Design of Bracing systems

Sistema di controvento

Bracing systems are required to resist transverse actions, due to wind and earthquake.

Vertical bracing system in the sidewalls between the columns.
This system transmits the horizontal transverse loads from the roof to the ground and temporary stability during the erection.

Horizontal roof bracing system
On the roof to transmit the transverse loads from the roof to the vertical bracing and to provide temporary stability during the erection.

Design of footings of steel structures

Pinned footing under vertical and horizontal loading

Fixed footing under vertical and horizontal loading and moment

Footings resisting horizontal forces only with passive earth pressure

Footings with horizontal ties in order to resist horizontal forces

Design of footings of steel structures

Design of base anchoring system

Simple base connection  (vertical and horizontal forces).

Fixed base connection. (vertical , horizontal forces and overturning moment).

Anchor bolts with hooks or with washer plates.

Design of base anchoring system

Eurocode 4

Design of composite steel and concrete structures

EN 1994-1-1:2004 Design of composite steel and concrete structures, General rules and rules for buildings

Eurocode 4

Resistance of cross-sections 

Design of steel cross section in Ultimate Limit State (ULS) for various combinations of actions.
For a selected cross section and the actions on the cross section the design the design resistance of the cross section is computed.  
Single actions
 Tension Nt
 Compression Nc
 Bending Myy, Bending Mzz
 Shear Vz, Shear Vy
Double actions
 Bending and compression Nc-Myy,Nc-Mzz
 Biaxial bending Myy-Mzz
 Compression and shear Nc-Vz, Nc-Vy  
Combined actions
 Compression, bending and shear Nc- Vz-My
 Tension, bending and shear Nt-Vz-My
 Bending and compression Nc-Myy-Mzz
 Bending and tension Nt-Myy-Mzz
 Axial force shear and bending N-V-M

Buckling Resistance of members 

Buckling resistance and lateral buckling resistance of members

Uniform members in compression EN1993-1-1:2005 6.3.1.

Columns with axial load only

Uniform members in bending EN1993-1-1:2005 6.3.2

Buckling resistance of members

Lateral Buckling Resistance of members 

Beams with vertical load only

Uniform members in bending and axial compression EN1993-1-1:2005 6.3.3

Columns with axial compression and end moments
Beams with vertical load and axial compression

Variety of loading combinations, end support conditions and various lateral restrained conditions

 Lateral buckling resistance of members

 Steel Sections

Standard sections, user defined, welded sections
Dimensions, geometric properties
Resistance values (axial load, bending shear)
Buckling resistance and lateral buckling resistance for various buckling lengths
Tables of all the international steel profiles
Dimensions, properties, classification resistance values for various actions, buckling and lateral buckling resistance values.
Tables of non-standard steel sections
Section properties are defined from the user.
Tables with welded (fabricated) steel sections
The user can make the steel section by giving the dimensions and thicknesses. The geometric and strength properties are computed by the program. These sections can be used anywhere in the program for designing steelwork elements.

Steel sections

Basic design charts and graphs of EC3 

Buckling curves, tools for computing buckling reduction factor.
Elastic critical moment for lateral buckling Mcr

Tools for computing Effective length of braced and unbraced members.

Basic design charts and graphs of EC3

Preview and print Report

Full report preview. Drawings of the structure and the structural details for the connections. The computational errors, or inadequate dimensioning, are shown in red.

Export of all reports to PDF or Word format.
Export of all CAD drawings to PDF or DXF(Autocad) format.
Printing in Α4, Α3, Α2 paper.

Full design report preview. Detailed report with diagrams, structure and connection drawings. 

References to Eurocodes paragraphs, report of analytical formulas and calculations. 

Report contents and design parts can be selected.

PDF and DOC export of the report.

Preview and print Report

report-preview (

Example Report

Basic Program Parameters

National Annex from EU countries. 


Materials: Structural steel, Concrete, Reinforcing steel, Soils.

Environmental loads, snow, wind, seismic

Basic program parameters

Eurocodes used in STEELexpress

EN1990:2002, Eurocode 0 Basis of Structural Design
EN1991-1-1:2002, Eurocode 1-1 Actions on structures
EN1991-1-3:2003, Eurocode 1-3 Snow loads
EN1991-1-4:2005, Eurocode 1-4 Wind actions
EN1992-1-1:2004, Eurocode 2 Reinforced concrete
CEN/TS 1992-4-1:2009, Design of fastenings in concrete, General
CEN/TS 1992-4-2:2009, Design of fastenings, Headed Fasteners
EN1993-1-1:2005, Eurocode 3 1-1 Design of Steel structures
EN1993-1-3:2005, Eurocode 3 1-3 Cold-formed members
EN1993-1-5:2006, Eurocode 3 1-5 Plated structural elements
EN1993-1-8:2005, Eurocode 3 1-8 Design of Joints
EN1997-1-1:2004, Eurocode 7 Geotechnical design
EN1998-1-1:2004, Eurocode 8 Design in earthquake environment

Engineering tools

Unit conversion

Area calculations

Section of properties

Calculation Rolled steel shapes


Other programs for steel calculation

Steel Portal Frame EC3Steel Portal Frame EC3

Design of Steel portal frame structures according to EC 3

Single-storey, one bay portal frames. Complete design according to Eurocode 3. Loading conditions and load combinations, Seismic design. Design of steel structure, steel joints, lateral bracing system according, concrete foundation. Detailed drawings of the structure and the connections.


Calcolo sezioni acciaio

Design tables for Steel Sections according to Eurocode 3

  • Standard sections
  • Welded sections
  • Composite sections
  • User defined sections

Dimensions, properties, classification, resistance and buckling resistance values.




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